Yellowhead County was formed in the 1990’s and was formerly the Improvement District of Yellowhead No. 14. When ID No. 14 became incorporated as a municipal corporation on January 1, 1994, the new municipal corporation was called “Municipal District of Yellowhead No. 94”.

The Municipal District of Yellowhead No. 94 existed for 4 years. A trend was starting in the Province of Alberta where “Municipal Districts” were changing their names to “County’s”. Many Municipal Districts in the Province found that outside of the municipal sector, most people did not know what a Municipal District was and found themselves explaining that it was the same as a County. The provincial legislation has also changed and allowed Municipalities to name themselves. In July of 1998, the Municipal District of Yellowhead No. 94 became Yellowhead County.